Post-UTME Mathematics 2015 Objective — Question 3
Question 3 of 40 from the Post-UTME Screening (Post-UTME) Mathematics 2015 Objective paper, with the correct answer and a full explanation.
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Evaluate the integral of cos(3x) dx from 0 to pi.
- A. -1
- B. 0Correct
- C. 1
- D. 2
Explanation
Integral = [sin(3x)/3] from 0 to pi = (sin(3pi) - sin(0))/3 = (0-0)/3 = 0.
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